Rotary gasoline motor



June 30, 1931. w, J TEETERS 1,812,729

ROTARY GASOLINE .MQTOR Filed Oct. 21, 192"! 3 Sheets-Sheet l e 5676 INVENTOR WITNESS: ATTORNE Y 3 Sheets-Sheet 2 w. J. TEETERS ROTA-RY GASOLINE MOVTOR Filed Oct. ,21, 192' June 30, 1931.

. z a j I r5 INVENTOR A TIORNEY Ja e 30, 1931'.

w; J. TEETERS ROTARY GASOLINE MOTOR Filed Oct. 21; 192' 3S heets-Sheet s W J 756 2 6 MENTOR WQ. J/LM'MM ATTOR N EY WITNESS:

Patented June 30, 1931 T7 Eb T PATE wnsonmrm'r'ms. i or ironsnnnms norms-assume moron Application nled flotober 21, 1827. Serial No. 227,799.

Thepre'sent invention relates to..rotary gasoline motors .and has for its objectito improve motors of this character.

More specifically, the objects ofthe.

ventio'n are to increase the efiiciency of a.

rotary mo'tor'and to rovide for a maximum amount of power wit a minimum consumption of-gas, 1

Further objects are compactness of construction andto simplify the construction and lighten the weight of the motor, the

elimination of parts which are likely to get from the following specification and W1 out of order, and-t0 reduce the number of hearings to a minimum.

4 33 of Figure 2.

- vided with si e flanges 20 'Fiure 4 1s a fragmentary detail view showlng the relation of the piston to the rotating drum.

Figure 5 is a detail'of one of the pistons on an enlarged section.

Figured is a detail view of the feed valve for the motor on an enlarged scale.

Figure 7 is a fragmentary'view, showing the feedvalve withm the feed valve casing.

Referring to thedrawings in detail, 10 designates a base supporting a pair of casin s 11 comprising si e walls 12-and 13 and su%stantially c lindrical connecting walls 14, the side walls eing centrally a ertured and provided with bearings 15 an port the drive shaft '17 projecting therethrough.

Keyed to the shaft within the casings by means of key members 18 are rotating drums or rotors 19,0 lindrical in shape and proprojeoting beyond the cylindrical surface 0 the rotor and riding in annulargrooves within the casings.

The upper inner surface ,ef the are recessed between shoulders 22 and 23 to provide combined expansion, and combustion chambers A, aid chambers being in communication with a supply of fuel through a port 24 and having at their opposite ends exhaust orts 25.,7Fdrmed' 1n the nner surfaces of t e walls of the casings and adjacent the shoulders 22 and, 23 are recesses 26 and 27 having therein spring.-

pressed guard members 28 and 29 pro'ect-- mg outwardly against the periphe'ries'o the drums to prevent the escape of gases from the chambers A, except through the exhaust ports at 25. t V

Set within the peripheries of the drums are flat rectangular piston members 30 slidabliy mounted inrecesses 31 and ressed outwar 1 against the inner perip cries of the cylindrical'walls of the casings b means'of springs 32, said pistons being he d retracted in the recesses 31"b the inner peripheries of the cylindrical-we ls, except when'fpassing through the chambers A. The width of the pistons, it should be understood, is suflicient to extend the entire width of the charmbers A, thereby preventing the escape of an.

appreciable amount of gas past the pistons w en passing through said chambers. As shownin the drawings, there are'three of these pistons, although any desir'ednumb'er may be employed and, the showing of three is merelyto be'considere'd illustrative. ofthe principles of the invention.

The feed of gas to the chambers A must be so timed and in such uantity as to provide a sufiicient charge int e rear of each piston afte it has passed-by'the intake ort at 24. In conse' uence I have provide "rotating cylindrica valve members 33 within valve v casings 34, said casings being in communion,

tion with the, chambers A throughthe ports 24. The valve members 33 are sealed at their ends by the walls of the'casings 34 which are secured to' the casings 11 and are pro.

videdin their sides with intake and outlet ports 35 and 36. The valves associated'with both casings are provided with common stems 37 connecting them together andcarrying thereon at the middle point a gear 38 meshing in a: 1-3 relationship with a gear 39 mounted for rotation therewith on the shaft 17 and lying between the two casings. Gas is fed to the interior of the valves 33 by means of conduits 40 leading from the ends of compressors 41 having compressing mechanism"'th"rei'n for compressin the gas, which are also operated by the sha t 17 in a 3-1 relationship through trains of gears 42, 43, 44 and 45, the gear 42 being secured to the shaft 17 for rotation therewith and being in 3-1 relationship with the gears 43, the gears 44 and being of the same size, and the gears 43 and 44 being connected together and'the mounted relative to the shaft 17 and mount; ed'thereupon. The'gears 45 are connected with'eccentrics'46 upon which the eccentric 'bands47"are"loosely mounted in the usual .manner, the eccentric bands having piston rods =48 projecting therefrom and into the cylinder 41. j 5

It will-appear from the foregoing description and-the disclosure in the drawings,

that for each rotation of the drums 19, there will be -compressed, ignited and delivered to the chambers A',a charge, the timing of the ignition and delivery being such that the ignited charge is'delivered j ust after the piston 30 has passed the intake port 24. In other wordsfwheh the piston has passed the intake port, asuflicient distance, the charge vis ignited by means of spark plugs 49 which have their spark'gaps arranged in the valve members 33 'as best'sjhown in Figure 2, and the charge is passed through the outlet ports 36' int o the pojrts 24 and thence to the combined expansion and combustion chambers A" whereby'the explosion takes place as above set forth, but of course that part of the charge in-the ports 24, outlet ports 36, and valve' me mbers 33, will be ignited simultaneously with that part of the'charge in the combined expansion and combustion chamber AL'fWhile the chambers A have been termed' combined combustion and expansion chambers, it will be obvious that the combustion "takes place in the spaces between the shoulders 23 and the pistons 30 that are disposed adjacent but beyond the portsl24- f I Bylthear'rangem'ent as describedabove I am enabled to get a high efficiency in a motor of this character with a comparatively small expenditure of fuel. I have accomplished this with a mechanism having as one of its'main featnres simplicityof construction." I=havef"b,een able to 'doaway'with amultiplicity of bearings and of operating elements without sacrificing efliciency, but on the contrary increasingthe efiiciency of myjdevicecover devices of the character now 1111156,, ,1,

gears 45 being rotatably Having described Lmy invention, what I claim is: j

A rotary engine including a support, a pair of circular spaced casings mounted on said support and havin spaced annular grooves adjacent the si e walls and combined expansion and firing chambers in the upper portions thereof, a drive shaft'journaled in said casing, rotors secured to the shaft within said casings, annular flanges on the periphery of the rotors and extending into the grooves, spring pressed pistons can ried by the rotors, said casings having intake ature. 

